Warp stop-motion for looms.



No. 69!,533. Patented Ian. 2|, I902.

J. ,V. & E.'OUNNIFF.

WARP STOP MOTION FOR LOOMS.

' (Application filed Oct. 28, 1901. (No Model.) 2 Sheets-Sheet I.

Fig. I

\XZILIZNEEEES. I O %%IM%Z%%INVENTU E No. 69I,533. v Patented Ian. 2|,I902. J. V. 8. E. CUNNIFF. WARP STOP mono" FDR Looms.

(Application filed Oct. 28, 1901.;

(No Model.) 2 Sheets-Sheet 2.

UNITED STATES PATENT ()FFICE.

JOHN VINCENT CUNNIFF AND EDlVARD CUNNIFF, OF NE\V BEDFORD,MASSACHUSETTS, ASSIGNORS TO AMERICAN MECHANICAL WARP STOP COMPANY, OFPAIVTUCKET, RHODE ISLAND, A CORPORATION OF RIIODE ISLAND.

WARP STOP-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 691,533, dated January21, 1902. Application filed October 28,1901. Serial No. 80,184. Nomodel- To all whom it may concern:

Be it known that we, JOHN VINCENT CUN- NIFF and EDWARD OUNNIEF, citizensof the United States, residingin New Bedford, in the county of Bristoland State of Massachusetts, have invented anew and useful Improvement inWarp Stop-Motions for Looms, of which the following is a specification.

This invention or improvement has for its principal objects to utilize asensitive deflector; to provide a detector which constitutes the directconnection between the feeler or oscillator and the shipper-releasewithout bringing into action any other connection; to provide astop-motion which can be applied to any make of loom, which will requireno extra attention from the section-hand, and which can be adjusted byany ordinary loomfixer; to provide a stop-motion which will increaseproduction by reason of its utilizing a light detector, (twelve grains,)thus reducing the strain on the yarn; to prevent the action of the stopfrom being affected by the collection of lint, and to provide astop-motion which will combine simplicity with strength and efficiencyof operation.

The nature of the invention is fully described indetail below andillustrated in the accompanying drawings, in which- Figure 1 is a view,partly in cross-section and partly in elevation, showing enough of theloom to illustrate our invention. Fig. 2 is an enlarged detail incross-section of our improvement. Fig. 3 is a similar detail in frontelevation. Fig. at is an enlarged sectional view illustrating theshipping mechanism. Fig. 5 is a rear view of the same. Fig. 6 is aperspective view of the detector.

Similar letters of reference indicate corresponding parts.

a represents portions of the frame of the loom.

b is the lay, provided with the projection b.

c is the breast-beam; d, the harness, and e the shipper, provided withthe releasing-lever e, pivoted to the frame.

f represents the warp-threads.

A represents a horizontal arm bolted to the frame at each end of themachine, each arm f. Extending from one bracket C to the other andhaving bearings therein is a rocker-shaft H. Rigid on this shaft. is anoscillator, consisting of two arms H, next the inner surfaces of thebrackets C, and a connecting-rod H",

which connects the outer ends of the arms. Loose on the shaft next thesearms are a pair of somewhat shorter arms I, connected by a bar ordeflector I. From the hub of one of these arms extends an arm J, pivotedat its lower end at J to a rod K, whose opposite end is pivoted at K" tothe lower end of a lever L, whose upper end is pivoted at L to a plateor bracket L, secured to the breastbeam. Rigidly secured to the lever Lis a lifting-dog N, whose end N bears against the under side of a daggerP, which is provided with a slot at P, through which the pivot Pextends, said pivot being supported by the breast-beam. The shaft H hasrigid on it a crank or lever h, which is connected by an eccentric-rodhi with an eccentric h on the shaft g, driven in the machine.

When the loom is working normally, the parts are in the positionindicated in Fig. l. The deflector I I is vertical on the shaft H, andthe detectors are supported by the warp. When a warp-thread. breaks, adetector F drops, as'in Figs. 2 and 3, into the path of the oscillator HH", between it and the deflector I. When the oscillator (operated by theshaft) strikes the detector, it pushes it against the deflector I androcks the deflector, the rocking motion raising the dagger P by means ofthe connections K and L and dog N for the next forward movement of thelay, and the parts are stopped in the position indicated in Fig. 4.

The lease-rods are preferably made of papier-mach or other suitablematerial and may be solid'or tubular, as desired.

Having thus fully described our invention, what we claim, and desire tosecure by Letters Patent, is-

1. In a warp stop-motion for looms, detectors as F supported by the warpand hanging freely therefrom; bars supported by the loom-frame andextending through the detectors; a horizontal shaft supported by theframe under the detectors and said bars; an oscillator comprising thebar H" and arms H rigid on the shaft and extending up therefrom underthe rows of detectors; the normally stationary deflector consistingessentially of the arms I loose on the shaft and connecting-bar Isupported by said arms and extending up from the shaft under the rows ofdetectors; and a shipping mechanism connected with the deflector,whereby the breakage of a warp-thread causes a detector to drop freelybetween the deflector and oscillator, and thus constitute a directcontact with both and connection between them, and whereby solely bysuch direct intermediate connection the oscillator imparts movement tothe deflector and the deflector operates the mechanism connected withthe shipper.

' 2. In a Warp stop-motion for looms, detectors supported by and hangingfreely vertically from the warp-threads; the rocker-shaft supported bythe frame under the detectors; an oscillator comprising a bar connectedrigidly with the rocker-shaft and extending up therefrom under the rowsof detectors; and a deflector connected with the shipping mechanism andcomprising a bar loosely connected with the rocker-shaft and extendingup therefrom under the rows of detectors; whereby the dropping of adetector between the oscillator and the deflector causes the oscillatorby the movement of the rockershaft to act directly on the detector, andthe detector to act directly on the deflector and solely by such actionto operate the shipping mechanism.

3. In a warp stop-motion for looms, the detectors F supported by andhanging freely from the Warp-threads the bars E supported by the frameand extending through said warp-threads; the rocker-shaft H supported bythe frame directly under the detectors; the oscillator H, H rigid on theshaft and extending up therefrom under the rows of detectors; thedeflector I, I loose on the shaft and extending up therefrom under therows of detectors; the shipping mechanism consisting of the arm Jpivotally connected with the deflector, the rod K pivoted to the arm J,the lever L pivotally connecting the rod K with the breast-beam, thelifting-dog N rigidly secured to the lever L, and the slotted dagger Ppivotally secured to the breastbeam; and mechanism for rocking the shaftH, all substantially as set forth.v

In testimony whereof We have signed our names to this specification inthe presence of two subscribing witnesses.

JOHN VINGEN'IICUNNIFF. EDWARD CUNNIFF.

Witnesses:

JAooB H. Peron, EDWARD L. BROMLEY.

